held by The Geological Society of London. The contest celebrates the 50th anniversary of plate tectonic theory, which is why the winning photos portray "the dynamic processes which have shaped the ...

Here are 10 of the weirdest geological structures on the planet. The otherworldly crystals in the Cave of the Crystals in Mexico can reach sizes larger than houses, by far the largest such ...

An end to atmospheric testing may have produced the declining bomb curve in these radioactive isotopes but it didn't stop geologic scale impacts, like the plutons produced by atomic blasts taking ...

This photo was submitted to Your Shot, our photo community on Instagram. Follow us on Instagram at @natgeoyourshot or visit us at natgeo.com/yourshot for the latest ...

Grabens, according to the U.S. Geological Survey, are blocks of rock that have dropped down as the Earth's crust pulls apart. The ridges along the valleys are called horsts. [Photos of the 10 ...

Located near but outside of Red Rock’s popular 13-mile scenic loop, Calico Basin is a year-round geologic stunner and a springtime contributor to Southern Nevada’s wildflower bouquet.

This process is primarily observed in the East African Rift System, where geological movements are creating divisions between the Nubian and Somalian plates. Experts are examining the ...

But mounting scientific evidence suggests there’s an untapped clean energy source deep underground that could provide vastly more power than we need: hydrogen created by natural geologic processes.